| 1 | # SPDX-License-Identifier: MIT |
| 2 | # |
| 3 | # Copyright (c) 2017 Philippe Proulx <pproulx@efficios.com> |
| 4 | |
| 5 | import collections.abc |
| 6 | |
| 7 | from bt2 import error as bt2_error |
| 8 | from bt2 import utils as bt2_utils |
| 9 | from bt2 import object as bt2_object |
| 10 | from bt2 import native_bt |
| 11 | |
| 12 | |
| 13 | class _IntegerRangeConst: |
| 14 | def __init__(self, lower, upper=None): |
| 15 | self._check_type(lower) |
| 16 | |
| 17 | if upper is None: |
| 18 | upper = lower |
| 19 | |
| 20 | self._check_type(upper) |
| 21 | |
| 22 | if lower > upper: |
| 23 | raise ValueError( |
| 24 | "range's lower bound ({}) is greater than its upper bound ({})".format( |
| 25 | lower, upper |
| 26 | ) |
| 27 | ) |
| 28 | |
| 29 | self._lower = lower |
| 30 | self._upper = upper |
| 31 | |
| 32 | @property |
| 33 | def lower(self): |
| 34 | return self._lower |
| 35 | |
| 36 | @property |
| 37 | def upper(self): |
| 38 | return self._upper |
| 39 | |
| 40 | def contains(self, value): |
| 41 | self._check_type(value) |
| 42 | return value >= self._lower and value <= self._upper |
| 43 | |
| 44 | def __eq__(self, other): |
| 45 | if not isinstance(other, _IntegerRangeConst): |
| 46 | return False |
| 47 | |
| 48 | return self.lower == other.lower and self.upper == other.upper |
| 49 | |
| 50 | |
| 51 | class _IntegerRange(_IntegerRangeConst): |
| 52 | def __init__(self, lower, upper=None): |
| 53 | super().__init__(lower, upper) |
| 54 | |
| 55 | |
| 56 | class _SignedIntegerRangeConst(_IntegerRangeConst): |
| 57 | _is_type = staticmethod(bt2_utils._is_int64) |
| 58 | _check_type = staticmethod(bt2_utils._check_int64) |
| 59 | |
| 60 | |
| 61 | class SignedIntegerRange(_SignedIntegerRangeConst, _IntegerRange): |
| 62 | pass |
| 63 | |
| 64 | |
| 65 | class _UnsignedIntegerRangeConst(_IntegerRangeConst): |
| 66 | _is_type = staticmethod(bt2_utils._is_uint64) |
| 67 | _check_type = staticmethod(bt2_utils._check_uint64) |
| 68 | |
| 69 | |
| 70 | class UnsignedIntegerRange(_UnsignedIntegerRangeConst, _IntegerRange): |
| 71 | pass |
| 72 | |
| 73 | |
| 74 | class _IntegerRangeSetConst(bt2_object._SharedObject, collections.abc.Set): |
| 75 | def __len__(self): |
| 76 | range_set_ptr = self._as_range_set_ptr(self._ptr) |
| 77 | count = native_bt.integer_range_set_get_range_count(range_set_ptr) |
| 78 | assert count >= 0 |
| 79 | return count |
| 80 | |
| 81 | def __contains__(self, other_range): |
| 82 | for rg in self: |
| 83 | if rg == other_range: |
| 84 | return True |
| 85 | |
| 86 | return False |
| 87 | |
| 88 | def __iter__(self): |
| 89 | for idx in range(len(self)): |
| 90 | rg_ptr = self._borrow_range_ptr_by_index(self._ptr, idx) |
| 91 | assert rg_ptr is not None |
| 92 | lower = self._range_get_lower(rg_ptr) |
| 93 | upper = self._range_get_upper(rg_ptr) |
| 94 | yield self._range_pycls(lower, upper) |
| 95 | |
| 96 | def __eq__(self, other): |
| 97 | if not isinstance(other, _IntegerRangeSetConst): |
| 98 | return False |
| 99 | |
| 100 | return self._is_equal(self._ptr, other._ptr) |
| 101 | |
| 102 | def contains_value(self, value): |
| 103 | for rg in self: |
| 104 | if rg.contains(value): |
| 105 | return True |
| 106 | |
| 107 | return False |
| 108 | |
| 109 | |
| 110 | class _IntegerRangeSet(_IntegerRangeSetConst, collections.abc.MutableSet): |
| 111 | def __init__(self, ranges=None): |
| 112 | ptr = self._create_range_set() |
| 113 | |
| 114 | if ptr is None: |
| 115 | raise bt2_error._MemoryError("cannot create range set object") |
| 116 | |
| 117 | super().__init__(ptr) |
| 118 | |
| 119 | if ranges is not None: |
| 120 | # will raise if not iterable |
| 121 | for rg in ranges: |
| 122 | self.add(rg) |
| 123 | |
| 124 | def add(self, rg): |
| 125 | if type(rg) is not self._range_pycls: |
| 126 | if self._range_pycls._is_type(rg): |
| 127 | rg = self._range_pycls(rg) |
| 128 | else: |
| 129 | # assume it's a simple pair (will raise if it's not) |
| 130 | rg = self._range_pycls(rg[0], rg[1]) |
| 131 | |
| 132 | status = self._add_range(self._ptr, rg.lower, rg.upper) |
| 133 | bt2_utils._handle_func_status(status, "cannot add range to range set object") |
| 134 | |
| 135 | def discard(self, rg): |
| 136 | raise NotImplementedError |
| 137 | |
| 138 | |
| 139 | class _SignedIntegerRangeSetConst(_IntegerRangeSetConst): |
| 140 | @staticmethod |
| 141 | def _get_ref(ptr): |
| 142 | native_bt.integer_range_set_signed_get_ref(ptr) |
| 143 | |
| 144 | @staticmethod |
| 145 | def _put_ref(ptr): |
| 146 | native_bt.integer_range_set_signed_put_ref(ptr) |
| 147 | |
| 148 | _as_range_set_ptr = staticmethod( |
| 149 | native_bt.integer_range_set_signed_as_range_set_const |
| 150 | ) |
| 151 | _borrow_range_ptr_by_index = staticmethod( |
| 152 | native_bt.integer_range_set_signed_borrow_range_by_index_const |
| 153 | ) |
| 154 | _range_get_lower = staticmethod(native_bt.integer_range_signed_get_lower) |
| 155 | _range_get_upper = staticmethod(native_bt.integer_range_signed_get_upper) |
| 156 | _is_equal = staticmethod(native_bt.integer_range_set_signed_is_equal) |
| 157 | _range_pycls = _SignedIntegerRangeConst |
| 158 | |
| 159 | |
| 160 | class SignedIntegerRangeSet(_SignedIntegerRangeSetConst, _IntegerRangeSet): |
| 161 | _create_range_set = staticmethod(native_bt.integer_range_set_signed_create) |
| 162 | _add_range = staticmethod(native_bt.integer_range_set_signed_add_range) |
| 163 | _range_pycls = SignedIntegerRange |
| 164 | |
| 165 | |
| 166 | class _UnsignedIntegerRangeSetConst(_IntegerRangeSetConst): |
| 167 | @staticmethod |
| 168 | def _get_ref(ptr): |
| 169 | native_bt.integer_range_set_unsigned_get_ref(ptr) |
| 170 | |
| 171 | @staticmethod |
| 172 | def _put_ref(ptr): |
| 173 | native_bt.integer_range_set_unsigned_put_ref(ptr) |
| 174 | |
| 175 | _as_range_set_ptr = staticmethod( |
| 176 | native_bt.integer_range_set_unsigned_as_range_set_const |
| 177 | ) |
| 178 | _borrow_range_ptr_by_index = staticmethod( |
| 179 | native_bt.integer_range_set_unsigned_borrow_range_by_index_const |
| 180 | ) |
| 181 | _range_get_lower = staticmethod(native_bt.integer_range_unsigned_get_lower) |
| 182 | _range_get_upper = staticmethod(native_bt.integer_range_unsigned_get_upper) |
| 183 | _is_equal = staticmethod(native_bt.integer_range_set_unsigned_is_equal) |
| 184 | _range_pycls = _UnsignedIntegerRangeConst |
| 185 | |
| 186 | |
| 187 | class UnsignedIntegerRangeSet(_UnsignedIntegerRangeSetConst, _IntegerRangeSet): |
| 188 | _create_range_set = staticmethod(native_bt.integer_range_set_unsigned_create) |
| 189 | _add_range = staticmethod(native_bt.integer_range_set_unsigned_add_range) |
| 190 | _range_pycls = UnsignedIntegerRange |